git: be8d01b51516 - main - stress2: Added a faster test of fsck_ffs by omitting mount(8) and umount(8)

The branch main has been updated by pho:

URL: https://cgit.FreeBSD.org/src/commit/?id=be8d01b51516b96c07ea95e4dbcc6e23c73e3bb5

commit be8d01b51516b96c07ea95e4dbcc6e23c73e3bb5
Author:     Peter Holm <pho@FreeBSD.org>
AuthorDate: 2023-05-22 08:07:40 +0000
Commit:     Peter Holm <pho@FreeBSD.org>
CommitDate: 2023-05-22 08:07:40 +0000

    stress2: Added a faster test of fsck_ffs by omitting mount(8) and umount(8)
---
 tools/test/stress2/misc/fsck13.sh | 152 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)

diff --git a/tools/test/stress2/misc/fsck13.sh b/tools/test/stress2/misc/fsck13.sh
new file mode 100755
index 000000000000..f279e0bae066
--- /dev/null
+++ b/tools/test/stress2/misc/fsck13.sh
@@ -0,0 +1,152 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2023 Peter Holm <pho@FreeBSD.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+
+# fsck_ffs(8) disk image fuzz test.
+# Test without mount(8) and umount(8)
+
+. ../default.cfg
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+cc -o /tmp/flip -Wall -Wextra -O2 ../tools/flip.c || exit 1
+
+# Disable the calls to sync(2) in fsck_ffs(8) to speed up the test
+echo 'int sync(void) { return (0); }' > /tmp/fsck_preload.c
+mycc -o /tmp/fsck_preload.so -shared -fpic /tmp/fsck_preload.c || exit 1
+rm /tmp/fsck_preload.c
+
+set -eu
+u1=$mdstart
+u2=$((mdstart + 1))
+mp1=${mntpoint}$u1
+prog=$(basename "$0" .sh)
+mkdir -p $mp1
+
+max=$((2 * 1024 * 1024)) # Two alternate super blocks @ 192 and 2240
+i=`jot -r 1 1 3`
+[ $i -eq 1 ] && flags="-O2"
+[ $i -eq 2 ] && flags="-U"
+[ $i -eq 3 ] && { flags="-j"; max=$((8 * 1024 * 1024)); }
+
+backup=$mp1/$prog.diskimage.$flags.`date +%Y%m%dT%H%M%S`
+core=/tmp/$prog.core.`date +%Y%m%dT%H%M%S`
+diskimage=$mp1/$prog.diskimage
+log=$mp1/$prog.log
+
+asbs=0
+cleans=0
+reruns=0
+waccess=0
+
+set +e
+mount | grep "on $mp1 " | grep -q /dev/md && umount -f $mp1
+[ -c /dev/md$u1 ] && mdconfig -d -u $u1
+mdconfig -a -t swap -s 10g -u $u1
+newfs $newfs_flags /dev/md$u1 > /dev/null
+mount /dev/md$u1 $mp1
+
+[ -c /dev/md$u2 ] && mdconfig -d -u $u2
+dd if=/dev/zero of=$diskimage bs=$max count=1 status=none
+mdconfig -a -t vnode -f $diskimage -u $u2
+backups=`newfs -N $flags md$u2 | grep -A1 "super-block backups" | \
+    tail -1 | sed 's/,//g'`
+echo "newfs $flags /dev/md$u2"
+newfs $flags md$u2 > /dev/null
+mdconfig -d -u $u2
+
+chk() {
+	local i
+
+	clean=0
+	rerun=0
+	waccess=0
+	LD_PRELOAD=/tmp/fsck_preload.so  \
+	    timeout 2m fsck_ffs -fy $1 > $log 2>&1
+	r=$?
+	if grep -qiE "super-?block.*failed" $log; then
+		for b in $backups; do
+			asbs=$((asbs + 1))
+			LD_PRELOAD=/tmp/fsck_preload.so  \
+			    timeout 2m fsck_ffs -b $b -fy $1 > $log 2>&1
+			r=$?
+			grep -qiE "super-?block.*failed" $log ||
+			   break
+		done
+		usedasb=1
+	else
+		usedasb=0
+	fi
+	LANG=C egrep -q "[A-Z][A-Z]" $log && clean=0
+	grep -Eq "IS CLEAN|MARKED CLEAN" $log && clean=1
+	# For now regard a "was modified" as a cause for a rerun,
+	# disregarding "clean" claim.
+	grep -Eq "WAS MODIFIED" $log && rerun=1
+	grep -q RERUN $log && rerun=1
+	grep -q "NO WRITE ACCESS" $log && waccess=1
+	[ $r -ne 0 -a $clean -eq 1 ] && echo "Exit code $r w/ clean == 1"
+}
+
+cd $mp1
+s=0
+start=`date +%s`
+while [ $((`date +%s` - start)) -lt 60 ]; do
+	/tmp/flip -n 50 $diskimage
+
+	cp $diskimage $backup
+
+	for i in `jot 10`; do
+		chk $diskimage
+		[ $i -eq 1 -a "$flags" = "-j" ] && continue # First run processes the journal
+		[ $rerun -eq 1 ] && { reruns=$((reruns + 1)); continue; }
+		[ $clean -eq 1 ] && { cleans=$((cleans + 1)); break; }
+		[ -f fsck_ffs.core ] && { s=1; break 2; }
+		[ $r -eq 124 ] && { s=2; break 2; } # timeout
+	done
+	[ $clean -ne 1 ] && break
+	[ $r -ne 0 -a $clean -eq 1 ] &&
+	    { echo "CLEAN && non zero exit code"; break; }
+	[ $clean -eq 1 ] && continue
+	[ $usedasb -eq 1 ] && { echo "Alt. SB failed"; s=104; }
+	[ $waccess -eq 1 ] && { echo "No write access"; s=105; }
+	break
+done
+
+echo "$cleans cleans, $reruns reruns, $asbs alternate SBs."
+if [ $clean -ne 1 ]; then
+	echo "FS still not clean. Last fsck_ffs exit code was $r."
+	[ $s -eq 0 ] && s=106
+fi
+grep -q "Superblock check-hash failed" $log && s=0 # Ignore for now
+grep -q "is not a file system superblock" $log && s=0 # Ignore for now
+[ $s -ne 0 ] && { gzip $backup; cp -v $backup.gz /tmp; }
+cd /tmp
+umount $mp1
+mdconfig -d -u $u1
+rm -f /tmp/flip /tmp/fsck_preload.so
+exit $s